Our genome isn’t just one string of DNA; it’s actually split into pieces called chromosomes.
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James Watson and Francis Crick built on her work to deduce that the DNA molecule had the shape of a double helix
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DNA is a long, stringy molecule whose job is to carry information.
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1950s, Rosalind Franklin managed to form DNA into a crystal and take an x-ray photograph that revealed its structure.
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Darwin’s theory of evolution by natural selection, it is nature, rather than human judgment, that determines which creatures live long enough to have offspring.
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Charles Darwin figured out that species evolve over time
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In the 1800s, a monk named Gregor Mendel figured out that traits of pea plants—like whether peas were yellow or green—were passed down from parent to child